JP2021521814A - Smoking Goods, Smoking Systems and Methods for Aerosol Generation - Google Patents

Abstract

Smoking articles (1, 2) include an aerosol-forming material (10) and a flammable heat source (12) for heating the aerosol-forming material (10). The flammable heat source (12) includes a flammable material (32) and an electromagnetic induction heating susceptor (34) for heating the flammable material (32) and thereby igniting it. A smoking system (50), including smoking articles (1, 2) and an igniter (52), is also described along with methods for aerosol production.

Description

The present disclosure relates generally to smoking articles, specifically to smoking articles for producing aerosols for inhalation by a user of the smoking article. The embodiments of the present disclosure also relate to smoking systems and methods for aerosol production using the smoking systems.

In recent years, devices that heat aerosol-forming materials rather than burn them to produce aerosols for inhalation have become popular. Such an apparatus can use one of several different methods to provide heat to the aerosol-forming material.

One such scheme is to provide a smoking article that utilizes a flammable heat source and an aerosol-producing material such as tobacco that is located downstream adjacent to the flammable heat source. When the flammable heat source is ignited, heat is transferred from the ignited flammable heat source to the aerosol-producing material, which releases the volatile compounds. The released volatile compounds cool and condense as they are taken up by the air flowing through the smoking article to form an aerosol that can be inhaled by the user of the smoking article.

Embodiments of the present disclosure seek to provide improved smoking articles that are more appealing to users.

According to the first aspect of the present disclosure, a smoking article is provided, which smoking article.
Aerosol-forming material,
Includes a flammable heat source for heating the aerosol-forming material, which includes a flammable material and an electromagnetic induction heatable susceptor for heating and thereby igniting the flammable material.

Heat is transferred from the flammable heat source, more specifically the ignited flammable material, to the aerosol-forming material to heat the aerosol-forming material. The aerosol-forming material is heated without burning to volatilize at least one component of the aerosol-forming material, thereby producing an aerosol for inhalation by the user of the smoking article.

In general terms, a vapor is a substance that is in the gas phase at a temperature below the critical temperature, which means that the vapor can be condensed into a liquid by increasing the pressure without lowering the temperature. On the other hand, an aerosol is a suspended substance of fine solid particles or droplets in the air or another gas. However, it should be noted that the terms "aerosol" and "vapor" can be used interchangeably herein, especially with respect to the form of the inhalable medium produced for inhalation by the user.

Electromagnetic induction heating susceptors can be heated in the presence of time-varying electromagnetic fields, providing a safe, effective and convenient way to ignite flammable materials without the need to use an external ignition source such as a conventional lighter. offer.

Electromagnetic induction heatable susceptors can include, but are not limited to, one or more of aluminum, iron, nickel, stainless steel and alloys thereof such as nickel chromium or nickel copper.

The flammable heat source and aerosol-forming material can be substantially axially aligned. The flammable heat source and aerosol-forming material can be adjacent to each other.

The flammable material may include any suitable flammable fuel material including, but not limited to, carbon, aluminum, magnesium, carbides, nitrides and mixtures thereof. The flammable material ideally has a high heat-generating capacity, produces only very small amounts of incomplete combustion by-products, and provides sufficient mechanical strength of the flammable heat source. In a preferred embodiment, the flammable material is carbon-based and may contain predominantly carbon.

An electromagnetic induction heated susceptor may contain multiple particles of susceptor material distributed within a flammable material. The use of granular susceptor material facilitates the production of smoking articles.

Particles of susceptor material can be distributed substantially evenly within the flammable material. This ensures ignition and combustion according to the uniform heating sequence of the flammable material.

The particles of the susceptor material can have a density that can vary within the flammable material in the longitudinal direction of the article. This makes it possible to control the combustion process and thus control the heating of the aerosol-forming material to ensure the production of aerosols with optimum properties.

In one embodiment, the particle density of the susceptor material can be high downstream and reach its highest point directly next to the aerosol-forming material. Therefore, the flammable material at the downstream end of the flammable heat source can be ignited before the flammable material at the upstream end. In this configuration, the aerosol-forming material can be heated to a high temperature at an early stage immediately after ignition of the flammable material by the heated susceptor. Thus, aerosols suitable for inhalation by the user can be rapidly produced, thereby ensuring that the user can use the smoking article as quickly and reliably as possible.

In another embodiment, the particle density of the susceptor material can be low downstream and reach its highest point at the upstream end in the region farthest from the aerosol-forming material. Therefore, the flammable material at the upstream end of the flammable heat source can be ignited before the flammable material at the downstream end. In this configuration, the aerosol-forming material can be heated to a high temperature at a later time and can be heated to a low temperature after the initial ignition of the flammable material by the heated susceptor. This ensures that a certain amount of aerosol is produced throughout the duration of the complete smoking session, because the components of the aerosol-producing material are depleted, especially as the smoking session progresses, ensuring a certain amount of aerosol. This is because more heat input is required for the aerosol-forming material in order to generate the material. It will be appreciated that if the heat input to the aerosol-producing material is constant throughout the duration of the smoking session, then a second half of the smoking session, a decrease in aerosol production, will be experienced.

The electromagnetic induction heated susceptor can include a tubular member that may have a longitudinal axis that is substantially aligned with the longitudinal axis of the article. Effective heating of flammable materials and thus aerosol-producing materials is ensured by this configuration.

The flammable material can be placed around the inside of the tubular member and the outside of the tubular member. This ensures optimal heat transfer from the tubular member (ie, the susceptor) to the flammable material and thus optimal heating of the flammable material.

The tubular member and the flammable heat source can each have an axial length.

In one embodiment, the axial length of the tubular member and the axial length of the flammable heat source can be substantially equal. In other words, the tubular members and the axial ends of the flammable heat source can be substantially axially aligned in the longitudinal direction of the article. By cutting a continuous elongated rod at a predetermined position, a plurality of flammable heat sources can be easily mass-produced. The continuous elongated rod includes a continuous tubular member and a flammable material disposed inside the continuous tubular member and around the outside of the continuous tubular member.

In another embodiment, the axial length of the tubular member can be shorter than the axial length of the flammable heat source. In other words, the tubular members and the axial ends of the flammable heat source need not be substantially axially aligned in the longitudinal direction of the article. In this configuration, the tubular member is completely enclosed by the flammable material, thereby maximizing heat transfer from the tubular member (ie, the susceptor) to the flammable material.

The flammable material can only be placed around the outside of the tubular member. In this configuration, the tubular member can provide an air flow path separated by a wall of the tubular member from a flammable material located around the outside of the tubular member. This can advantageously reduce the amount of combustion by-products such as carbon dioxide and carbon monoxide produced as a result of the combustion of flammable materials taken into the air flowing through the air flow path into the mouthpiece of the smoking article. can.

Smoking articles may further include one or more electromagnetic induction heating components, such as metal components. In a preferred embodiment, the electromagnetic induction heating component other than the electromagnetic induction heating susceptor does not overlap the flammable material in the longitudinal direction of the article. In this configuration, even if one or more electromagnetically induced heatable components are heated in the presence of a time-varying electromagnetic field, the heating and ignition of the flammable material is only by heating the electromagnetically induced heatable susceptor of the flammable heat source. Brought to you.

The flammable material may contain multiple pores. This hole allows ambient air to flow into the flammable material, which facilitates ignition and combustion of the flammable material, but ideally the air flowing through the flammable heat source is to the user. Does not allow it to reach.

Smoking articles may include a chamber downstream of the aerosol-producing material. This chamber is advantageously capable of cooling and condensing the heated air and the volatile components in this heated air to form an aerosol with optimal properties for inhalation by the user. To. Smoking articles may include a cylindrical fuselage that defines the chamber.

Smoking articles may include a mouthpiece downstream of the aerosol-producing material. The mouthpiece can be downstream of the chamber. The mouthpiece may include, for example, a breathable plug containing cellulose acetate fibers.

The aerosol-forming material can be any type of solid or semi-solid material. Exemplary types of aerosol-forming solids include granules, pellets, powders, strips, strands, particles, gels, strips, loose-leaf, cut fillers, porous materials, foam materials or sheets. Aerosol-producing materials may include plant-derived materials, in particular aerosol-producing materials may include tobacco.

Aerosol-forming materials may include aerosol-forming agents. Examples of aerosol forming agents include polyhydric alcohols such as glycerin or propylene glycol and mixtures thereof. Generally, aerosol-forming materials may contain from about 5% to about 50% aerosol-forming agent content on a dry weight basis. In some embodiments, the aerosol-forming material may contain an aerosol-forming agent content of about 15% on a dry weight basis.

Upon heating, the aerosol-forming material can release volatile compounds. Volatile compounds can include flavoring compounds such as nicotine or tobacco flavorings.

According to a second aspect of the present disclosure, a smoking system is provided, which smoking system.
With smoking items as specified above,
An igniter for igniting a flammable material, including an igniter including an electromagnetic induction coil for electromagnetic induction heating of a susceptor.

The igniter provides a convenient way for the user to heat the electromagnetic induction heated susceptor and thus ignite the flammable material. Heating of flammable materials is not user dependent and can therefore be repeated, because heating is controlled by an electromagnetic induction heating susceptor rather than by a user using an external ignition source such as a conventional lighter. This is because it is executed in the same way. This results in improved aerosol production and a safe, effective and convenient way to ignite flammable materials.

The electromagnetic induction coil can be spiral and can define a cavity for receiving the smoking article or at least a portion of the smoking article. The electromagnetic induction coil can surround substantially all of the susceptor when the smoking article is placed in the cavity. The electromagnetic induction heated susceptor is heated in an optimal manner, thereby ensuring optimal heating and thus ignition of the flammable material.

The position of the smoking article relative to the position of the electromagnetic induction coil can be determined by the cavity. This makes it possible to optimize the positional relationship between the susceptor and the electromagnetic induction coil, which results in the optimum coupling between the electromagnetic field generated by the electromagnetic induction coil and the susceptor and thus the optimum heating of the susceptor. ..

The igniter may include an air supply mechanism that may be configured to supply air to the flammable material. The air supply mechanism may include a fan and may include an air flow path at the end of the cavity to guide air to a flammable material. The air supply mechanism can help facilitate the ignition and combustion of flammable materials.

According to a third aspect of the present disclosure, a method for aerosol production is provided, which method is:
With the steps to provide a smoking system as defined above,
A step of arranging a flammable heat source in the vicinity of the electromagnetic induction coil so that the electromagnetic induction heating susceptor couples with the electromagnetic field generated by the electromagnetic induction coil and is heated by the electromagnetic field.
The step of maintaining the position of the flammable heat source until the flammable material is ignited by the heated susceptor so that the heat generated by the ignited flammable material heats the aerosol-producing material to produce an aerosol. Including and.

After igniting the flammable material with a heated susceptor, this method removes the flammable heat source from its location near the electromagnetic induction coil, for example, and heats the electromagnetic induction heating susceptor with an electromagnetic field generated by the electromagnetic induction coil. May include a step to end. After removing the flammable heat source, the ignited flammable material continues to burn and thus heats the aerosol-forming material to produce an aerosol.

This method provides a simple and effective method for aerosol production using the smoking system according to the present disclosure.

FIG. 5 is a schematic longitudinal sectional view of a first embodiment of a smoking article. FIG. 5 is a schematic cross-sectional view of an example of a flammable heat source for use with the first embodiment of the smoking article shown in FIG. FIG. 5 is a schematic cross-sectional view of an example of a flammable heat source for use with the first embodiment of the smoking article shown in FIG. FIG. 5 is a schematic cross-sectional view of an example of a flammable heat source for use with the first embodiment of the smoking article shown in FIG. FIG. 5 is a schematic cross-sectional view of an example of a flammable heat source for use with the first embodiment of the smoking article shown in FIG. FIG. 5 is a schematic cross-sectional view of an example of a flammable heat source for use with the first embodiment of the smoking article shown in FIG. FIG. 5 is a schematic longitudinal sectional view of a second embodiment of a smoking article. FIG. 7 is a schematic cross-sectional view of an example of a flammable heat source for use with the second embodiment of the smoking article shown in FIG. FIG. 7 is a schematic cross-sectional view of an example of a flammable heat source for use with the second embodiment of the smoking article shown in FIG. FIG. 7 is a schematic cross-sectional view of an example of a flammable heat source for use with the second embodiment of the smoking article shown in FIG. FIG. 7 is a schematic cross-sectional view of an example of a flammable heat source for use with the second embodiment of the smoking article shown in FIG. The smoking system and the method for aerosol production using the smoking system are outlined. It is a figure which shows typically the smoking system and the method for aerosol generation using the smoking system. It is a figure which shows typically the smoking system and the method for aerosol generation using the smoking system. It is a figure which shows typically the smoking system and the method for aerosol generation using the smoking system.

Here, an embodiment of the present disclosure will be described as a mere example with reference to the accompanying drawings.

First, referring to FIG. 1, a first embodiment of a smoking article 1 comprising an aerosol-forming material 10 and a flammable heat source 12 arranged to heat the aerosol-forming material 10 when burned is shown. Has been done. Article 1 is elongated and substantially cylindrical. The air flow through the article 1 flows from the upstream end 6 to the downstream end 8 of the article 1 from left to right, as schematically indicated by the arrows in FIG. The aerosol-forming material 10 is arranged downstream of the flammable heat source 12 and adjacent to the flammable heat source 12.

Smoking article 1 defines an elongated chamber 16 and includes an open-ended cylindrical fuselage 14 typically formed of cardboard or cardboard. Smoking article 1 includes a mouthpiece 18 at the downstream end 8 that is coaxially aligned adjacent to the cylindrical body 14. The mouthpiece 18 includes, for example, a breathable plug containing cellulose acetate fibers. Both the cylindrical body 14 and the mouthpiece 18 are typically wrapped by an outer packaging 20 that includes a tipped paper. The smoking article 1 further comprises an open-ended cylindrical liner 22 containing, for example, aluminum and / or paper, which extends along a portion of the interior of the cylindrical fuselage 14 without overlapping the flammable heat source 12. ..

The aerosol-forming material 10 contains granules of tobacco material, which are placed in a container in the form of a cup 24 located at the upstream end 6 of smoking article 1. The flammable heat source 12 has a diameter smaller than the open end 26 of the cup 24 and therefore extends into the open end 26 to hold the aerosol-forming material 10 in the cup. The cup 24 includes a closed end 28 having an air flow path 30 that allows air to flow into the chamber 16.

The flammable heat source 12 is usually a porous carbon-based heat source. The flammable heat source 12 is cylindrical and includes, in the illustrated first embodiment, a central air flow path 21 extending longitudinally through the flammable heat source 12. The flammable heat source 12 includes a carbon-based flammable material 32 and an electromagnetic induction heated susceptor 34 (FIGS. 2-6) for heating and thus igniting the flammable material 32. The electromagnetic induction heating susceptor 34 and thus the flammable heat source 12 can take various forms as described here with reference to FIGS. 2-6.

A first example of the flammable heat source 12 is shown in FIG. In this first example, the susceptor 34 comprises a plurality of particles 36 of the susceptor material that are evenly distributed throughout the flammable material 32.

A second example of the flammable heat source 12 is shown in FIG. In this second example, the susceptor 34 comprises a plurality of particles 36 of the susceptor material, which are also distributed throughout the flammable material 32. However, in contrast to the first example, the density of the granular material 36 varies within the flammable material 32 in the longitudinal direction of the smoking article 1 thereby controlling the combustion process and thus the heating of the aerosol-forming material 10. Will be possible. In the illustrated example, it can be seen that the density of the granular material 36 increases downstream and reaches its highest point at a point directly adjacent to the aerosol-forming material 10. In this configuration, the flammable material 32 at the downstream end of the flammable heat source 12 tends to ignite before the flammable material 32 at the upstream end, so that the aerosol-forming material 10 is hot at an early stage. Is heated up to. In another example (not shown), the density of the granular material 36 can be low downstream and reach its highest point at the upstream end 6 of article 1 in the region farthest from the aerosol-forming material 10. In this configuration, the flammable material 32 at the upstream end tends to ignite before the flammable material 32 at the downstream end, so that the aerosol-forming material 10 is heated to a high temperature at a later time. ..

A third example of the flammable heat source 12 is shown in FIG. In this third example, the electromagnetic induction heating susceptor 34 includes a tubular susceptor 38 having a longitudinal axis that is substantially aligned with the longitudinal axis of smoking article 1. The flammable material 32 is arranged around the inside of the tubular susceptor 38 and the outside of the tubular susceptor 38. The tubular susceptor 38 and the flammable heat source 12 have the same axial length and are arranged so that their respective ends are axially aligned.

A fourth example of the flammable heat source 12 is shown in FIG. The fourth example is similar to the third example described above with reference to FIG. 4, but the axial length of the tubular susceptor 38 is shorter than the axial length of the flammable heat source 12. And their respective ends are not axially aligned.

A fifth example of the flammable heat source 12 is shown in FIG. In this fifth example, the electromagnetic induction heating susceptor 34 includes a tubular susceptor 38 that also has a longitudinal axis that is substantially aligned with the longitudinal axis of the smoking article 1. It can be seen that the interior of the tubular susceptor 38 provides the air flow channel 21 and therefore the flammable material 32 is located only around the exterior of the tubular susceptor 38. In this configuration, it will be appreciated that the air flowing through the air flow path 21 is separated from the flammable material 32 located around the outside of the tubular susceptor by the wall of the tubular susceptor 38.

Here, with reference to FIG. 7, a second embodiment of the smoking article 2 similar to the smoking article 1 described above with reference to FIG. 1 is shown, wherein the corresponding elements correspond. It is shown using a reference number.

In smoking article 2, the flammable heat source 12 does not include an air flow path and includes a solid or continuous plug of a porous flammable carbon-based material. The smoking article 2 includes an air intake 40 that allows air to flow through the cylindrical body 14 and the cylindrical liner 22. Further, the cup 24 includes an air passage 42 in the cylindrical surface, through which air from the intake port 40 flows through the aerosol-forming material 10, and then through the air passage 30 by the method described above with reference to FIG. Allows flow through and into the chamber 16. The airflow from the upstream end 6 through the smoking article 2 to the downstream end 8 is also schematically shown by arrows in FIG.

The electromagnetic induction heated susceptor 34 and thus the flammable heat source 12 can take various forms as described here with reference to FIGS. 8-11 for use with the smoking article 2.

A sixth example of the flammable heat source 12 is shown in FIG. In this sixth example, the susceptor 34 comprises a plurality of particles 36 of the susceptor material that are evenly distributed throughout the flammable material 32.

A seventh example of the flammable heat source 12 is shown in FIG. In this seventh example, the susceptor 34 comprises a plurality of particles 36 of the susceptor material, which are also distributed throughout the flammable material 32. In this seventh example, the density of the granular material 36 varies within the flammable material 32 in the longitudinal direction of the smoking article 2, thereby allowing control of the combustion process and thus the heating of the aerosol-forming material 10. .. In the illustrated example, it can be seen that the density of the granular material 36 increases downstream and reaches its highest point at a point directly adjacent to the aerosol-forming material 10. As described above with reference to FIG. 3, in this configuration, the flammable material 32 at the downstream end of the flammable heat source 12 tends to be ignited before the flammable material 32 at the upstream end. As a result, the aerosol-forming material 10 is heated to a high temperature at an early stage. Instead, the density of the granular material 36 can be low downstream and reach its highest point at the upstream end 6 of article 2 in the region farthest from the aerosol-forming material 10. In this configuration, the flammable material 32 at the upstream end tends to ignite before the flammable material 32 at the downstream end, so that the aerosol-forming material 10 is heated to a high temperature at a later time. ..

An eighth example of the flammable heat source 12 is shown in FIG. In this eighth example, the electromagnetic induction heating susceptor 34 includes a tubular susceptor 38 having a longitudinal axis that is substantially aligned with the longitudinal axis of smoking article 2. The flammable material 32 is arranged around the inside of the tubular susceptor 38 and the outside of the tubular susceptor 38. The tubular susceptor 38 and the flammable heat source 12 have the same axial length and are arranged so that their respective ends are axially aligned.

A ninth example of the flammable heat source 12 is shown in FIG. The ninth example is similar to the eighth example described above with reference to FIG. 10, but the axial length of the tubular susceptor 38 is shorter than the axial length of the flammable heat source 12. And their respective ends are not axially aligned.

Here, with reference to FIGS. 12-15, a smoking system 50 for producing an aerosol for inhalation by the user is shown. The smoking system 50 includes the smoking article 1 shown in FIG. 1 in combination with the first example of the flammable heat source 12 shown in FIG. However, smoking article 1 can be used in combination with any of the other examples of flammable heat sources 12 shown in FIGS. 3-6, or the smoking system 50 instead uses smoking as shown in FIG. It will be appreciated that article 2 may include a combination of any of the examples of flammable heat sources shown in FIGS. 8-11.

The smoking system 50 further includes an igniter 52 for igniting the flammable material 32. The igniter 52 includes a spiral electromagnetic induction coil 54 that defines a cavity 56 for receiving the upstream end 6 of the smoking article 1.

During use, the user places the upstream end 6 of the smoking article 1 in the cavity 56 as shown in FIG. 13, and then, for example, manually by the user or by detecting the placement of the smoking article 1 in the cavity 56. The igniter 52 is automatically activated. The igniter 56 includes a controller and a power supply (not shown). Among the electronic components, the controller includes an inverter arranged to convert direct current from a power source into alternating high frequency current for the electromagnetic induction coil 54. As those skilled in the art will understand, when the electromagnetic induction coil 54 is excited by an alternating high frequency current, a time-varying electromagnetic field of alternating current is generated. This combines with the granular susceptor material 36 to generate eddy currents and / or magnetic hysteresis losses in the granular susceptor material 36, and as outlined by the modified cross-hatching of FIG. 14, the granular susceptor material 36 To heat. Heat is then transferred from the granular susceptor material 36 to the flammable material 32 by, for example, conduction, radiation and convection, igniting and burning the flammable material 32. After combustion has begun, the upstream end of smoking article 1 is removed from the cavity 56 as shown in FIG. The granular susceptor material 36 is no longer heated by the time-varying electromagnetic field generated by the electromagnetic induction coil 54 after removing the smoking article 1 from the cavity 56, but the flammable material 32 continues to burn.

To facilitate the ignition and initial combustion of the flammable material 32, the igniter 52 may include an air supply mechanism (not shown) that, for example, has a fan and an upstream end of the cavity 56. Including the air flow path, air is guided to the flammable material 32 while the flammable material 32 is heated by the granular susceptor material 36.

The heat from the ignited flammable material 32 is transferred to the aerosol-forming material 10, so that the aerosol-forming material 10 is heated without burning. Heating the aerosol-forming material 10 in this way volatilizes one or more components of the aerosol-forming material 10. When the user puts his lips on the mouthpiece 18 and sucks in air through the smoking article 1, the air flows through the central air flow path 21, and the air is heated by the heat transferred from the flammable material 32. The heated air then flows through the aerosol-forming material 10 and causes further heating of the aerosol-forming material 10 and thus further volatilization of one or more components of the aerosol-forming material 10. The volatile components of the aerosol-forming material 10 are taken in by the air flowing through the smoking article 1, and the heated air and the taken-in volatile components flow downstream into the chamber 16 and are cooled and condensed in the chamber 16. To form an aerosol that the user inhales through the mouthpiece 18.

Although exemplary embodiments have been described in the previous paragraphs, it should be understood that various modifications can be made to these embodiments without departing from the appended claims. Therefore, the scope and scope of claims should not be limited to the exemplary embodiments described above.

Unless otherwise specified herein or as clearly contradicted by context, any combination of the above-mentioned features in all possible variants is included in the present disclosure.

Unless the context clearly requires that this is not the case, terms such as "contains" and "contains" throughout the specification and claims are as opposed to exclusive or exhaustive meanings. Should be interpreted inclusively, that is, in the sense of "including but not limited".

Claims (15)

Smoking goods (1, 2)
Aerosol-forming material (10),
A flammable heat source (12) for heating the aerosol-forming material (10).
The flammable heat source (12) includes an electromagnetic induction heating susceptor (34) for heating the flammable material (32) and thereby igniting the flammable material (32). Smoking goods (1, 2). The smoking article according to claim 1, wherein the electromagnetic induction heating susceptor (34) includes a plurality of particles (36) of the susceptor material distributed in the flammable material (32). The smoking article according to claim 2, wherein the particles (36) of the susceptor material are substantially evenly distributed within the flammable material (32). The smoking article according to claim 2, wherein the particles (36) of the susceptor material have a density that changes within the flammable material (32) in the longitudinal direction of the article. The smoking article according to claim 1, wherein the electromagnetic induction heating susceptor (34) includes a tubular member (38) having a longitudinal axis substantially aligned with the longitudinal axis of the article. The smoking article according to claim 5, wherein the flammable material (32) is arranged around the inside of the tubular member (38) and the outside of the tubular member (38). The smoking article according to claim 5, wherein the flammable material (32) is arranged only around the outside of the tubular member (38). The smoking article according to any one of claims 1 to 7, wherein the electromagnetic induction heating component other than the electromagnetic induction heating susceptor (34) does not overlap with the flammable material (32) in the longitudinal direction of the article. .. The smoking according to any one of claims 1 to 8, wherein the flammable material (32) includes a plurality of holes and allows ambient air to flow into the flammable material (32). Goods. Smoking system (50)
The smoking article (1, 2) according to any one of claims 1 to 9,
An igniter (52) for igniting the flammable material (32), the igniter (52) including an electromagnetic induction coil (54) for electromagnetic induction heating of the susceptor (34).
Smoking system (50). The smoking system according to claim 10, wherein the electromagnetic induction coil (54) is spiral and defines a cavity (56) for receiving the smoking article. The smoking system according to claim 10 or 11, wherein the electromagnetic induction coil (54) surrounds substantially all of the susceptor (34) when the smoking article is placed in the cavity (56). The smoking system according to any one of claims 10 to 12, wherein the igniter (52) includes an air supply mechanism for supplying air to the flammable material (32). A method for aerosol production,
The step of providing the smoking system (50) according to any one of claims 10 to 13.
The flammable heat source (12) is connected to the electromagnetic induction coil (54) so that the electromagnetic induction heating susceptor (34) is coupled to the electromagnetic field generated by the electromagnetic induction coil (54) and is heated by the electromagnetic field. 54) Placement in the vicinity of
The flammable material (32) is such that the heat generated by the ignited flammable material (32) heats the aerosol-producing material (10) to produce an aerosol. A method comprising the step of maintaining the position of the flammable heat source (12) until ignited by 34). After ignition of the flammable material (32) by the heated susceptor (34), the flammable heat source (12) is removed from its position in the vicinity of the electromagnetic induction coil (54) to remove the electromagnetic induction coil (54). The ignited flammable material (32) includes heating the aerosol-forming material (10) to include the step of terminating the heating of the electromagnetic induction heated susceptor (34) by the electromagnetic field generated by the above. The method for producing aerosols according to claim 14, which continues to produce aerosols.

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